* remove parameter BranchPredictor
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove references to the removed parameter(s) from examples
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from compliance verification
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from core lists
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from the example configurations
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove references to the removed parameter from documentation
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove related and dead code
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
---------
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
Co-authored-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove parameter option WritebackStage
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from examples
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from compliance verification
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from formal verification code generated for SymbioticEDA
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove reference to the deleted parameterd from the documentation
Do not refer to WriteBack as to a stage
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove related code to Writeback stage
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Removal of related and dead code after Writeback-stage removal
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* substitute ASSERT macro with one ignoring rst_ni and clk signals
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* keep clk_i and rst_ni for the sake of assert alone
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* BUGFIX: reintroduce en_wb signal between id and wb
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
---------
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
Co-authored-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* [rtl] Clear mprv on mret to non M-mode
This is specification change between the v1.11 and v1.12 privileged
architectures. Previously mprv wasn't altered on mret. Now if returning
to a privilege level other than M mode mprv must be cleared.
* [rtl, dv] Add new CSRs for latest priviledged spec
This adds the following CSRs to support the v1.12 priviledged spec.
- MSTATUSH
- MCONFIGPTR
- MENVCFG
- MENVCFGH
MCONFIGPTR is read only and has its value provided by a ibex_pkg
parameter CSR_MCONFIGPTR_VALUE which is set to 0. Implementors can alter
this value if needed.
All the other CSRs ignore writes and read as 0.
---------
Co-authored-by: Greg Chadwick <gac@lowrisc.org>
Remove dead and related code
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
Co-authored-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
When in the FLUSH state we cannot have `csr_pipe_flush` set as it
depends upon `instr_executing` being set (within `ibex_id_stage`) and
that is only set in the DECODE stage.
Co-authored-by: Greg Chadwick <gac@lowrisc.org>
* [rtl] Flush controller in PMP CSR write ops
As Greg pointed out:
When we have an instruction in ID/EX that writes a PMP register that
update gets written to the CSR the same cycle the next instruction
moves from IF to ID/EX with it's PMP check done with the old value.
The solution is to flush the pipeline when we get a PMP CSR write.
Signed-off-by: Canberk Topal <ctopal@lowrisc.org>
* [rtl] Flush pipe on MSECCFG CSR write
Without this an instruction executed immediately after the MSECCFG write
doesn't have the new MSECCFG setup applied to its execute permission.
---------
Signed-off-by: Canberk Topal <ctopal@lowrisc.org>
Co-authored-by: Canberk Topal <ctopal@lowrisc.org>
Co-authored-by: Greg Chadwick <gac@lowrisc.org>
* remove BranchTargetALU param.
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from the documentation
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from the example configurations
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from examples
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from compliance verification
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* remove references to the removed parameters from core lists
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
* Remove references to the removed parameter(s) from Yosys framework configuration parser
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
---------
Signed-off-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
Co-authored-by: Szymon Bieganski <szymon.bieganski@oss.nxp.com>
